lt3579iufd-trpbf Linear Technology Corporation, lt3579iufd-trpbf Datasheet - Page 34
lt3579iufd-trpbf
Manufacturer Part Number
lt3579iufd-trpbf
Description
Lt3579/lt3579-1 6a Boost/inverting Dc/dc Converter With Fault Protection Features
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3579IUFD-TRPBF.pdf
(40 pages)
- Current page: 34 of 40
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LT3579/LT3579-1
TYPICAL APPLICATION
34
90
85
80
75
70
65
Effi ciency and Power Loss (V
0
5
TOTAL OUTPUT POWER (W)
9V TO 16V
10
V
IN
15
Danger High Voltage! Operation by High Voltage Trained Personnel Only
C
C1-C6: 2.2μF , 50V, X7R, 1210
D1-D6: DIODES INC SBR2A40P1
D7: CENTRAL SEMI CMDSH-3TR
D8: CENTRAL SEMI CMDZ5237B-LTZ
D9: DIODES INC MBRM360
L1: WÜRTH WE-PD 7447710
M1: SILICONIX SI7461DP
IN
VFD (Vacuum Flourescent Display) Power Supply Switches at 1MHz
: 10μF , 25V, X7R, 1210
C
10μF
IN
20
10μH
100k
536k
L1
86.6k
IN
25
= 12V)
3579 TA18
V
FAULT
SHDN
RT
SYNC
IN
30
SW1 SW2
LT3579
5
4
3
2
1
0
2.2μF
GND
C4
2
CLKOUT
GATE
D9**
SS
FB
V
D2
C3
2.2μF
D1
C
2
2.2μF
*MAX TOTAL
OUTPUT POWER
22W (V
27W (V
33W (V
**OPTIONAL FOR OUTPUT
SHORT CIRCUIT PROTECTION
C1
2.2μF
383k
3
27pF
IN
IN
IN
= 9V)
= 12V)
= 16V)
D5
D3
D6
D4
6.5k**
34k
470pF
AC COUPLED
AC COUPLED
20V/DIV
2V/DIV
2V/DIV
1A/DIV
D8**
8.2V
V
V
OUT1
OUT2
SW1
M1**
I
L
D7**
3579 TA17
V
IN
C6
2.2μF
C5
2.2μF
C2
2.2μF
Cycle-to-Cycle
2
2
3
1μs/DIV
V
100V
330mA*
V
67V
500mA*
OUT2
OUT1
3579 TA19
35791f
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